When a voice transmission arrives on your frequency, the radio will automatically unmute, and the audio will play through the internal speaker. Transmitting (Sending a Call)
Located directly below the Push-To-Talk (PTT) button on the side. Pressing this disables the squelch, allowing you to hear background static and check for weak signals.
| Problem | Possible Cause | Solution | | :---------------------- | :--------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------ | | | Dead/defective battery. | Charge the battery overnight. If the problem persists, replace the battery pack. | | No transmission | PTT button is stuck or dirty. | Check the PTT for debris; try pressing it firmly. | | Can't hear others | Volume is down. | Rotate the On/Off Volume knob clockwise to raise the volume. | | | The radio is not set to the same frequency as the other radio. | Access the DIP switches under the battery and verify they match the settings of the other radio. | | Short battery life | Battery is old or was deeply discharged. | Replace the battery pack, especially if it is the original Ni-Cd type. Moving to a higher-capacity Ni-MH pack is a good upgrade. | | Constant static | Frequency is set to a "quiet" channel. | Reprogram the radio to a different, active frequency. |
To communicate effectively with an SP10, you have to follow the rhythm of the hardware: Instruction Manual For Motorola Radius Sp10
To prevent you from hearing static or chatter from other businesses sharing your frequency, the SP10 utilizes squelch systems:
Check if an audio accessory is partially plugged into the side connector, as this can mute the internal speaker.
Place the radio (or the battery alone) into the dedicated Motorola desktop charger. When a voice transmission arrives on your frequency,
The Motorola Radius SP10 relies on factory-programmed frequencies or custom dealer programming.
: Turn the volume control knob clockwise to power on the device. Continue rotating to adjust the audio level to your preference.
Most standard SP10 desktop chargers feature a single LED. Red indicates charging. Ensure the radio is powered off while sitting in the charging cradle. | Problem | Possible Cause | Solution |
Located next to the antenna. Turn it clockwise until you hear a click to turn the radio on. Continue rotating clockwise to increase the volume level.
Press the small to break the squelch. While holding it, rotate the Volume knob until you hear a comfortable level of hiss. Release the button.
Because the SP10 is a legacy device, official support and new parts (like chargers) are no longer available from Motorola Solutions .
Keep the radio vertical and clear of obstructions. When a teammate speaks, the LED light will turn green, and the audio will play through the front speaker. Transmitting (Speaking)